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Cushion|Natural|GIA

1.51ct I SI1 Cushion Natural Diamond

VG • I/SI1 • GIA 1543770021

Certificate GIA 1543770021

Diamond specifications and retailer prices

From $9,230 NZD
$5,193 USD
As of November 2, 2026
Save $8,916 NZD (49%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $18,145 NZD at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1543770021. Listed at 20 retailers as of November 1, 2026, with prices from $9,230 to $18,145, a $8,916 spread on the same certified stone. MOH London lists it at $18,145. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1543770021
Dimensions7.59 × 6.22 × 4.30 mm
L/W Ratio1.22
Girdle conditionFaceted
Culet sizeNone
Top View
7.59 mm6.22 mm1.51 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1543770021
Side View
Table 69.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 69.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $18,145 NZD|Low: $9,230 NZD|High: $18,364 NZD|Avg: $12,076 NZD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 11$9,230 NZD
Retailer 10$9,731 NZD
Retailer 7$9,821 NZD
Retailer 12$10,994 NZD
Retailer 9$11,158 NZD
Retailer 4$11,240 NZD
Retailer 3$11,365 NZD
Retailer 5$11,812 NZD
Retailer 8$12,078 NZD
Retailer 2$13,455 NZD
Retailer 6$15,132 NZD
MOH London$18,145 NZD

44 data points across 12 retailers

20 retailers$9,230 NZD to $18,145 NZD

B+
Cheapest Retailer
-
$9,230 NZD
$5,193 USD
B+
Retailer 2
-
$9,621 NZD
$5,413 USD
View
B+
Retailer 3
-
$9,731 NZD
$5,475 USD
View
B+
Retailer 4
-
$9,860 NZD
$5,548 USD
View
Retailer 5
-
$10,088 NZD
$5,676 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
$10,113 NZD
A$8,754 AUD
View
B
Retailer 7
-
$10,994 NZD
$6,186 USD
View
B
Retailer 8
-
$11,158 NZD
$6,278 USD
View
B
Retailer 9
-
$11,240 NZD
CA$8,784 CAD
View
B
Retailer 10
-
$11,365 NZD
A$9,838 AUD
View
B
Retailer 11
-
$11,407 NZD
$6,418 USD
View
B+
Retailer 12
-
$11,812 NZD
£5,233 GBP
View
Retailer 13
-
$12,078 NZD
A$10,455 AUD
View
Price last confirmed 29 days ago
B
Retailer 14
-
$12,192 NZD
$6,860 USD
View
B
Retailer 15
-
$12,192 NZD
$6,860 USD
View
B
Retailer 16
-
$12,601 NZD
$7,090 USD
View
B
Retailer 17
-
$13,455 NZD
€7,210 EUR
View
Retailer 18
-
$13,577 NZD
$7,639 USD
View
Price last confirmed 10 days ago
B
Retailer 19
-
$15,132 NZD
ZAR 137,544 ZAR
View
Most Expensive
B
MOH London
36872112B · Nov 1
$18,145 NZD
£8,039 GBP
View
19 more retailers have this diamond
Prices start from $9,230 NZDSave up to $8,916 NZD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
1.51ct Cushion
$9,230 NZD